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Quantum BCH Codes Based on Spectral Techniques

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Communications in Theoretical Physics 2006年第2期45卷 283-286页

作者： GUO Ying ZENG gui-hua Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200030 China

When the time variable in quantum signal processing is discrete, the Fourier transform exists on the vector space of n-tuples over the Galois field F2, which plays an important role in the investigation of quantum signals. By using Fourier transforms, the idea of quantum coding theory can be described in a setting that is much different from that seen that far. Quantum BCH codes can be defined as codes whose quantum states have certain specified consecutive spectral components equal to zero and the error-correcting ability is also described by the number of the consecutive zeros. Moreover, the decoding of quantum codes can be described spectrally with more efficiency.

关键词： Fourier transform BCH code quantum error-correction code

Maximal and total skew information of three-qubit system obtained using nonlinear interaction models

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Chinese Physics B 2012年第1期21卷 52-61页

作者： Sun Hong-gui liu Wan-Fang Zhang li-hua li Chun-Jie Mechanical and Electrical Engineering College Jiaxing UniversityJiaxing 314001China School of Physics and Electric Engineering Anqing Teachers CollegeAnqing 246011China College of Physics Changchun Normal UniversityChangchun 130032China

Both the maximal and the total skew information have been studied. For a three-qubit system implemented in three nonlinear interaction models, we give the exact state vector at any time t. Beused on this, we give the maximal and the total skew information. It is found that they have the same form and their evolution periods are dependent on the energy difference between the ground state and the second excited state in these models. The maximal skew information is always in the （Sx, Sv） plane. We give the condition for the occurrence of IGHZ}sy, in which they can reach the extreme values of 9/4 and 15/4, respectively. In three different decoherence channels, two kinds of information and the concurrence are calculated. We find that the phenomenon of the concurrence of sudden death occurs, but the above two kinds of information do not die suddenly. In the phase-damping channel, the two kinds of information will not be lost completely.

关键词： maximal and total Wigner-Yanase skew information nonlinear interaction models,three-qubit system three decoherenee channels

Removing ammonia from skim by air stripping with rotating packed bed

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Chinese Journal of Chemical Engineering 2019年第3期27卷 528-533页

作者： Hongxing gui Xiuping li Danzhou Investigation & Experiment Station of Tropical Crops Ministry of Agriculture School of Chemical and Engineering North University of China Shanxi Provincial Key Laboratory of Ultra-Gravity Chemical Engineering

Based on the effects of skim components on ammonium removal as well as the current processing technology, a new process-intensified technology of removing ammonia from skim by air stripping on rotating packed bed was proposed. The experiments were conducted on a wave-thread packed Rotating Packed Bed(RPB) under atmospheric pressure, suggesting that, in terms of order of importance, the ammonium concentration of feed-stock(x_w), the average ultra-gravity factor(β), feed-stock flux(L), and gas flux(G) had significant impact on ammonium removal rate(η) and the ammonium concentration of products(x_D). In the experiment, mass-transfer coefficient in gas phase(k_ya_e) increases with the increase of β, G/L, and L. The ammonium concentration of products decreases with the increase of β, G/L and the increase of L. The ammonium concentration of products would be as low as ~0.10% and the ammonia removal rate would be 63.21% when skim temperature was 25 °C, x_w0.28%, β 133.2, and G/L 15.0 m^3·L^(-1). Experiment results indicated that the proposed technology for removing ammonium from skim on a rotating packed bed would be a new process-intensified technique compared with traditional aeration process and centrifugal atomization method.

关键词： Skim Ammonia removal Ultra-gravity technology Air stripping

Preparation of 2,6-diisopropylnaphthalene with recycled process of isomers

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Chinese Chemical Letters 2008年第4期19卷 390-394页

作者： Zheng hua Tian gui li Zhao Hong Min Jia Ben li Wei Qi Hu School of Chemical Engineering University of Science ＆ Technology Liaoning.Anshan 114051China

2,6-Diisopropylnaphthalene（2,6-DIPN）,as the precursor of important monomer 2,6-naphthalene dicarboxylic acid,was prepared by hydroisopropylation of refined naphthalene with propene over shape-selective *** conversion of 92% and 2,6-DIPN selectivity of 64% were *** melt crystallization was applied to separate and purify 2,6-DIPN from its isomers,resulted in a product purity of≥99%.The other isomers were converted into monoisopropylnaphthalene,which also reacted with propene to form 2,6-DIPN.A recycled process including hydroisopropylation,separation and transalkylation was established,the yield of 2,6-DIPN based on naphthalene could be doubled by one cycle operation.

关键词： 2,6-Diisopropylnaphthalene Hydroisopropylation Static melt crystallization Intermolecular transalkylation Recycled process

Collaboratively enhancing electrochemical properties of liNi_(0.83)Co_(0.11)Mn_(0.06)O_(2) through doping and coating of quadrivalent elements

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Rare Metals 2023年第12期42卷 4103-4114页

作者： Zhao-Zhe Yu gui-Quan Zhao Fang-li Ji Hao Tong Qi-lin Tong hua-Cheng li Yan Cheng Guangxi Key Laboratory of Manufacturing Systems and Advanced Manufacturing Technology Guilin University of Electronic TechnologyGuilin 541004China Engineering Research Center of Electronic Information Materials and Devices Ministry of EducationGuilin University of Electronic TechnologyGuilin 541004China Guangxi CNGR New Energy Science&Technology Co. Ltd.Qinzhou 535000China

Ni-rich layered oxides(Ni>80%)with high energy density have become a mainstream cathode material for li-ion ***,irreversible phase transitions and interface instability are deep-seated challenges in commercializing Ni-rich *** study used a collaborative modification strategy involving doping and coating with quadrivalent elements to construct Ni-rich *** particular,introducing tetravalent Zr makes the valence change of Ni(2+to 4+)more accessible to complete spontaneously during the charging and discharging processes,which significantly suppresses the cationic mixing and irreversible phase transition(H2?H3).Combining the strategy of constructing CeO_(2) coatings on the surface and interfacial spinel-like phases improves the li+diffusion kinetics and interfacial ***,part of the strongly oxidizing four-valence Ce^(4+)diffuses to the surface layer,further increasing the average valence state of ***,liNi_(0.83)Co_(0.11)Mn_(0.06)O_(2)(NCM)-Zr@Ce achieves 78.5%outstanding retention at1.0C after 200 cycles within 3.0-4.3 V compared to unmodified NCM with 41.4%*** improved cyclic stability can be attributed to the collaborative modification strategy of the quadrivalent elements,which provides an effective synergistic modification strategy for developing high-performance li-ion battery cathode materials.

关键词： Collaborative modification strategy Quadrivalent elements Phase transitions Structural degradation Ni-rich layered oxides

The mRNA Expression and Methylation Status in Imprinting Control Region of H19 Gene Between Cattle-Yak and Their Parents

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Journal of Integrative Agriculture 2012年第10期11卷 1691-1699页

作者： li Ming-gui liU Zhen-shan PAN Zeng-xiang LUO hua XIE Zhuang li Qi-fa College of Animal Science and Technology Nanjing Agricultural University

The H19 gene, which is imprinted with preferential expression from the maternal allele, was one of the first identified imprinting genes in mammals. Recent studies revealed that correct imprinting of the H19 gene plays a vital role in human spermatogenesis. To investigate whether imprinting defects were associated with the hybrid sterility of male cattle-yak, the methylation patterns of the H19 imprinting control region （ICR） and H19 mRNA expression in the testes of cattle-yak, yak, and cattle were examined. The results showed that the 3rd CCCTC-binding factor （CTCF） site of the H19 ICR was significantly hypomethylated in the testes of cattle-yak compared with yak or cattle. As expected, H19 was expressed at a significantly higher level in cattle-yak than in yak or cattle. These results suggest that imprinting defects of the CTCF- binding site in the HI9 ICR were possibly associated with disturbed spermatogenesis of male cattle-yak. Thus, we propose that disorders in H19 imprinting, resulting in an increased H19 mRNA expression, might contribute to the sterility of F1 male hybrids between cattle and yak.

关键词： cattle-yak male sterility H19 ICR CTCF-binding site mRNA expression DNA methylation

Wolfe-Type Duality for Mathematical Programs with Equilibrium Constraints

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Acta Mathematicae Applicatae Sinica 2019年第3期35卷 532-540页

作者： Lei GUO gui-hua liN Jing ZHAO Sino-US Global Logistics Institute Shanghai Jiao Tong UniversityShanghai 200030China School of Management Shanghai UniversityShanghai 200444China School of Mathematical Sciences Dalian University of TechnologyDalian 116024China

This paper considers the mathematical programs with equilibrium constraints(MPEC).It is well-known that,due to the existence of equilibrium constraints,the Mangasarian-Fromovitz constraint qualification does not hold at any feasible point of MPEC and hence,in general,the developed numerical algorithms for standard nonlinear programming problems can not be applied to solve MPEC *** the past two decades,much research has been done to develop numerical algorithms and study optimality,stability,and sensitivity for ***,there are very few results on duality for MPEC in the *** this paper,we present a Wolfe-type duality for MPEC and,under some suitable conditions,we establish various duality theorems such as the weak duality,direct duality,converse duality,and strict converse duality *** further show that a linear MPEC is equivalent to a linear programming problem in some sense.

关键词： mathematical program with equilibrium constraints Wolfe-type duality duality theorem

Nano/Micro HKUST-1 Fabricated by Coordination Modulation Method at Room Temperature

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Chemical Research in Chinese Universities 2012年第4期28卷 555-558页

作者： NA li-yan hua Rui-nian NING gui-ling OU Xiao-xia State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024P.R.China College of life Science Dalian Nationalities UniversityDalian 116600P.R.China

A simple and fast route for the synthesis of metal-organic framework（MOF） particles was *** 3（BTC） 2（HKUST-1,BTC=1,3,5-benzenetricarboxylate）,one of the most well-known MOFs,was synthesized at room temperature via coordination modulation *** adding different modulators（monocarboxylic acids） into the reaction system,the morphologies of HKUST-1 crystals were tuned from nano spheres to micro octahedrons at room temperature without any complex equipment.X-Ray diffractions and gas sorption measurements revealed highly crystalline particles with large Brunauer-Emmett-Teller（BET） surface areas（1116―1273 m^ 2 /g） and total pore volumes（0.62―0.73 cm^ 3 /g）.The significantly small particle sizes and high capacity of gas sorption are considered advantageous for envisaged application in practical industrial process.

关键词： Cu3(BTC)2(HKUST-1) Metal-organic framework Coordination modulation method

老年高血压病与高血压病合并糖尿病心率变异性和动态血压变化分析

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四川医学 2009年第1期30卷 26-28页

作者：王贵华汪汉李璐邓珏琳四川大学华西医院老年科四川成都610041

目的探讨老年原发性高血压病(essential hypertension,EH)与EH合并2型糖尿病(diabetes mellitus,type 2,T2DM)心率变异性(heart rate variability,HRV)和动态血压(ambulatory blood pressure,ABP)的变化特点。方法对32例EH合并T2DM患者、26例EH患者、22例对照组的HRV和ABP进行比较分析。结果与对照组比较,EH组SDNN(Plity,BPV)异常,糖代谢异常可加重EH的HRV和BPV的异常程度。

关键词：高血压 2型糖尿病心率变异性动态血压自主神经系统